Super-fine talcum powder
Super-fine talcum powder is produce with high quality talc deposits through dressing, water washing, air drying, breaking and grinding. Each procedure is under strict operation rules and testing standard. Products feature high whiteness, even distribution of granularity and large specific surface area.
Use
Super-fine talcum powder is usually used as filling material for paper making, coatings, printing ink, cables, ceramics, rubber, medicine, textiles and feeding industries.
Component index
| SiO2 |
≥60% |
Cd |
10 |
| MgO |
≥30% |
Hg |
N.D |
| CaO |
≤0.5% |
[Cr(VI)] |
N.D |
| Al2O3 |
≤0.7% |
Arsenic (As)PPM |
10 |
| Loss on ignition |
≤6% |
Ferric salt |
=0.2% |
| Lead (Pb)PPM |
10 |
Asbestos |
N.D |
Data parameter
| Test item |
Product Name |
TP-8931A |
TP-8932 |
TP-8533 |
TP-8321 |
| Specific surface area |
cm2/g |
12000 |
10000 |
8500 |
7000 |
| D97 |
µm |
<5.0 |
<8.5 |
<13.0 |
<18.0 |
| Mean grain size |
µm |
<2.2 |
<3.5 |
<4.5 |
<5.0 |
| Maximum grain size |
µm |
20 |
40 |
44 |
48 |
| Whiteness |
% |
94 |
93 |
92 |
91 |
| Bulk specific gravity |
g/cm3 |
0.18 |
0.21 |
0.25 |
0.3 |
| True specific gravity |
g/cm3 |
2.65 |
2.65 |
2.65 |
2.65 |
| pH-value |
|
7±0.5 |
7±0.5 |
7±0.5 |
7±0.5 |
| Moisture |
% |
≤0.3 |
≤0.3 |
≤0.3 |
≤0.3 |
| Loss on ignition |
% |
≤6 |
≤6 |
≤6 |
≤6 |
| Oil absorption |
gc.c/100g |
38 |
33 |
26 |
23 |
| 325 meshes residues |
% |
0 |
0 |
0.01 |
0.02 |
| Net wt. |
Kg |
25 |
25 |
25 |
25 |
|
